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1. ## series convergence
Hi.
series: Sigma n from 1 to infinity arctan(n) / n^3/2
I want to determine convergence/divergence.
What i tried:
f(x) = arctan(x) / x^3/2
arctan(x) > f(x)
since arctan(x) converges to pi/2 as x -> inf, f(x) should converge too.
Is that reasoning right?
2. Originally Posted by Kuma
ser... | |
# On Sample Complexity of Projection-Free Primal-Dual Methods for Learning Mixture Policies in Markov Decision Processes
We study the problem of learning policy of an infinite-horizon, discounted cost, Markov decision process (MDP) with a large number of states. We compute the actions of a policy that is nearly as goo... | |
# BBO Discussion Forums: How will this hands be bid ? - BBO Discussion Forums
• 2 Pages
• 1
• 2
## How will this hands be bid ?
### #21mtn1ms
• Group: Members
• Posts: 2
• Joined: 2019-April-16
Posted 2019-April-16, 19:42
Our 1 shows 5+ or 444 with 1 so we would open this 1 and respond 3 (showing limit raise in )... | |
# Tag Info
8
Your lecturer is trying to express some useful intuition, but in a vague way. To make it as simple as possible, let's go back to the simple harmonic oscillator. Recall that $$[a, a^\dagger] = 1, \quad [H, a^\dagger] = a^\dagger$$ and let's work throughout with units $k = m = 1$. Now suppose that some sta... | |
# American Institute of Mathematical Sciences
November 2020, 14(4): 603-611. doi: 10.3934/amc.2020033
## Designs from maximal subgroups and conjugacy classes of Ree groups
1 School of Mathematical Sciences, North-West University, (Mafikeng) 2754, South Africa 2 School of Mathematics, Statistics and Computer Scienc... | |
+0
# Applied Geometry
0
358
2
find the circumfence of a circle that is inscribed in a square with side 12 cm.
Aug 16, 2017
### Best Answer
#1
+349
+1
If the side of the square is 12 cm, then the radius of the circle is half of that, or 6 cm. The circumference of a circle is 2*Pi*r. Substituting r, we get
$$2\Pi... | |
Research
# Suzuki-type fixed point results in metric type spaces
Nawab Hussain1*, Dragan Ðorić2, Zoran Kadelburg3 and Stojan Radenović4
Author Affiliations
1 Department of Mathematics, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
2 Faculty of Organizational Sciences, University of Belgrad... | |
# Motivation
When I use math mode inside of itemize environments for multiline equations, I have to do something like the following
...
\begin{itemize}
\item \begin{aligned}[t] equation stuff \end{aligned}
...
\end{itemize}
...
# Question
How can I wrap the two components \begin{aligned}[t] and \end{aligned} into ... | |
# ACsc Function
Returns the inverse cosecant
## Description
The Function $$ACsc$$ returns the inverse cosecant of real or complex numbers. The argument can be a single number or a data field. For data fields, the inverse cosecant of each element is calculated and the results returned in a data field of equal size.
... | |
Search
# DYEING OF COTTON MATERIAL WITH DIRECT DYES (Lab Manual)
Updated: Mar 13, 2021
Aim:
To dye the given cotton material using direct dyestuff with the required percentage of dye.
Recipe:
Procedure:
The given cotton material is weighted accurately. The dye bath is prepared by pasting the dyestuff with sodium... | |
[Resource Topic] 2018/1217: Changing Points in APN Functions
Welcome to the resource topic for 2018/1217
Title:
Changing Points in APN Functions
Authors: Lilya Budaghyan, Claude Carlet, Tor Helleseth, Nikolay Kaleyski
Abstract:
We investigate the differential properties of a construction in which a given function ... | |
Extremal behavior of stochastic integrals driven by regularly varying L\'{e}vy processes
Abstract
We study the extremal behavior of a stochastic integral driven by a multivariate L\'{e}vy process that is regularly varying with index $\alpha>0$. For predictable integrands with a finite $(\alpha+\delta)$-moment, for so... | |
AIMS Mathematics, 2017, 2(1): 102-110. doi: 10.3934/Math.2017.1.102
Research article
Export file:
Format
• RIS(for EndNote,Reference Manager,ProCite)
• BibTex
• Text
Content
• Citation Only
• Citation and Abstract
Large time behavior framework for the time-increasing weak solutions of bipolar hydrodynamic model ... | |
# What does sin 6x mean?
Table of Contents
sin 6x sin 2(3x)
## Is sin6x the same as 6sinx?
And no, sin(6x) is not 6sin(x), and for exactly the same reason. Note, however, that you *can* go to ksin(6x+ ).
## How to find sin 6x?
The formula for the trigonometric function sin3x is given by, sin3x 3 sin x – 4 sin^3x ... | |
# oxidation number of copper
Oxidation also hinders the electrical conductivity of copper wire. Joan Whetzel has been writing professionally since 1998. Copper-Catalyzed Hydroquinone Oxidation and Associated Redox Cycling of Copper under Conditions Typical of Natural Saline Waters. The oxidation number of copper (Cu) ... | |
# Pool Shark #2
Geometry Level 1
If you have a pool table as shown shaped like an isosceles right triangle, with a ball that starts at the right angle, where should you aim at on the hypotenuse so after one bounce the ball hits the midpoint of the left-hand side of the table?
This problem is part of the Brilliant.or... | |
## The Annals of Statistics
### Robust Estimation of a Location Parameter in the Presence of Asymmetry
John R. Collins
#### Abstract
Huber's theory of robust estimation of a location parameter is adapted to obtain estimators that are robust against a class of asymmetric departures from normality. Let $F$ be a distr... | |
# Example of dense subspace of \$l_infty\$
So $$l_infty$$ is not separable. So any dense subspace would be uncountable. Any familiar space like space of continuous function, $$c_0$$ or $$c_{00}$$ space that are not dense in $$l_infty$$.
So any precise example for dense subspace in $$l_infty$$ | |
# Fractional exponents
1. Nov 24, 2011
Can someone explain the logic behind this?
For instance if 2 to the 3rd power = 2 x 2 x 2 =8
So 2 to the 3rd power is telling me I have 2 multiplied by itself 3 times.
Now how would I solve for 2 to the 1/3rd power? It is telling me I have 2 multiplied by itself 1/3 times but... | |
4.4: Groups within Society
Objectives
• Analyze the major features of primary and secondary groups.
• Explain the purpose that groups fulfill.
• Distinguish between primary and secondary group relationships.
• Describe how a social group differs from a social category or social aggregate.
• Distinguish a primary grou... | |
# Can circularly polarized light interfere with linearly polarized
1. ### Albert V
26
Can circularly polarized light interfere with linearly polarized light?
2. ### chrisbaird
614
Re: Interference
Yes. You can think of circularly polarized light as the coherent sum of two orthogonal, linearly polarized waves that ... | |
# Grammar of words with exactly $k$ prefixes in another grammar
Given a context-free grammar $$G$$, how can one systematically construct a grammar $$G_k$$ such that
$$L(G_k) = \{w \in \Sigma^* : |\text{Pref}(w) \cap L(G)| = k\}$$
where $$\text{Pref}(w)$$ is the set of $$|w|+1$$ prefixes of $$w$$? Assume $$G$$ is una... | |
# FFT based algorithm for special matrices
Contest problems with connections to deeper mathematics.
This question is with regard to Elkies' answer to the above post.
Vandermonde determinant can be computed using FFT techniques.
Can Moore determinant(including modulo some integer) be computed using FFT techniques?
... | |
# Math Help - Question about presentation of cyclic group
1. ## Question about presentation of cyclic group
I want to list the elements of $T=$
So from my understanding, $a^ia^j=a^{i+j} \ \ \ \forall 0 \leq i,j \leq 5$ with $a^{i+j}=a^{i+j-6} \ \ i+j \geq 6$
But I'm having trouble trying to make senses of the two o... | |
# Depreciation
In depreciation, plant asset’s cost allocating over the period of assets. This process included the asset’s allocation, expenses against revenue over the asset’s life.
Depreciation methods
Straight line
Unit of production
Declining balance
Sum of year-digits
## Straight-line method
In the straight-lin... | |
# Is it possible to have a sequence that is strictly increasing but whose first term is the maximum?
Edit 1: Changed from monotonically increasing sequence to a strictly increasing sequence.
Edit 2: Let $$\{a_n\}$$ denote a sequence such that for all $$n\geq 2$$, $$a_n < a_{n+1}$$ and $$a_n \leq a_1$$.
Is it possibl... | |
## Deviations from the mean of a sum of independent, non-identically-distributed Bernoulli variables
### September 29, 2011
Let Bi, i = 1, …, n be independent Bernoulli variables with parameters qi, i = 1, …, n, respectively. Let S be their sum. For convenience, assume q1 ≥ q2 ≥ ··· ≥ qn. I wish to bound tightly from... | |
# Find a number such that the sum of the number and its square will be as small as possible.
Find a number such that the sum of the number and its square will be as small as possible.
Please try to explain as well as you can.
-
Hint: You are trying to find the minimum of $x^2+x$. Try expressing this as a completed s... | |
# Caption This: The Bell Tolls for Whitney
Enter your caption for a chance to be featured in our weekly newsletter.
Caption this photo!
What's Whitney Sudler-Smith doing here? You tell us. Write a caption for thisphoto. If yours is chosen as the best, it'll appear in Bravo's e-mail newsletter next Thursday. | |
# Elemental Signals
Elemental signals are the building blocks with which we build complicated signals. By definition, elemental signals have a simple structure. Exactly what we mean by the "structure of a signal" will unfold in this section of the course. Signals are nothing more than functions defined with respect to... | |
# How does the viscosity (besides density) of a fluid affects sinking
If water, air of whatever fluid had a different viscosity, but the same density, would things fall/sink differently?
• [Related Quora Would-a-hydrophobic-coating-make-a-heavy-object-sink-through-water-faster] (quora.com/Science/…) – user28737 Jun 4... | |
Create new environment with options
I'm new to creating new environments and even though I searched at the xparse*documentation I couldn't figured out how to solve my specific problem. I would like to create a new environment, say concept, and I would like it to take an optional argument (I don't know if it has to be ... | |
# First-order properties of Euclidean fields (instead of real closed fields)
Let $$\mathbb{F}$$ be an ordered field.
• $$\mathbb{F}$$ is called Euclidean if $$\forall x>0 \in \mathbb{F}\ \exists y \in \mathbb{F} : y^2=x$$, i.e. a square root exists.
• $$\mathbb{F}$$ is called real closed if it is Euclidean and every ... | |
## Monday, March 27, 2017
### Week of March 27,2017
Algebra 1
A Quadratic Equation in Standard Form
(ab, and c can have any value, except that a can't be 0.)
To "Factor" (or "Factorise" in the UK) a Quadratic is to:
find what to multiply to get the Quadratic
It is called "Factoring" because we find the factors (a f... | |
Using the result of Exercise 13, it is possible to avoid the discontinuity at d = 0 in the direction
Using the result of Exercise 13, it is possible to avoid the discontinuity at d = 0 in the direction finding mapping of the simple gradient projection method. At a given point let γ = − min{0, λi}, with the minimum tak... | |
# Constructing scale drawings
An urban planner needs your help in creating a scale drawing. Let's use our knowledge about scale factor, length, and area to assist.
### Problem
Rishi is making a map of a remote village. In this village, each hut has a rectangular base measuring 4, space, m by 6, space, m.
Move the po... | |
# sum_(n=0)^oo 5^n/(3^n +4^n). Does the series converge or diverge?
## I used Divergence Test and I'm stuck on this part ${\lim}_{n \to \infty} {\left(\frac{5}{4}\right)}^{n} / \left[{\left(\frac{3}{4}\right)}^{n} + 1\right]$ Im having trouble finding the limit
Apr 9, 2017
${\sum}_{n = 0}^{\infty} {5}^{n} / \left({3... | |
# Sentence Examples with the word Hesperornis
The swimming Hesperornis (see Odontornithes) was also devoid of such a structure.
In Colymbus the patella is reduced to a small ossicle, its function being taken by the greatly developed pyramidal processus tibialis anterior; in Podiceps and Hesperornis the patella itself... | |
Drawing on Canvas
Generic drawing is done on a Canvas. You control what appears on this canvas by defining a draw function:
using Gtk, Graphics
c = @GtkCanvas()
win = GtkWindow(c, "Canvas")
@guarded draw(c) do widget
ctx = getgc(c)
h = height(c)
w = width(c)
# Paint red rectangle
rectangle(ctx, 0, 0, w, h/2)
set_sour... | |
Free Version
Easy
# Solution to a Linear System
LINALG-G2LCXF
Consider the following system of linear equations:
$2x + 3y = 1$
$x + y = 0$
Which of the following is a solution to the system?
A
$(2,-1)$
B
$(1,-1)$
C
$(-1,1)$
D
$(0,0)$
E
$(2,3)$ | |
# PrusaSlicer
PrusaSlicer is Prusa Research’s slicer software, which is Open Source and a direct descendant of Slic3r (like ).
It is annoyingly ‘cyclic Open Source’, in the sense that it is developed mostly internally and the public source tree updated after each release. | |
# Decidability of CFG ambiguity
I have been trying to show the following language is undecidable.
$L = \{ (\langle G \rangle , n ): G$ is a context-free grammar with an ambiguous string of length $\le n \}$.
I think it is undecidable because if $G$ doesn't have an ambiguous string, it seems like one would have to ch... | |
## My Solution of The Purdue University Problem Of The Week No. 12
My solution of POW12 was accepted. [Remark of December 19, 2009: it is only stated that it was “completely or partially proved”]
Problem. Find, with proof, the maximum value of $\displaystyle\prod\limits_{j=1}^{k}x_{j}$ where $x_{j}\geq 0,\displaystyl... | |
1. ## Rationalize the denominator
[\MATH]\frac{1}{((x)^(1/3)-(y)^(1/3))}[/MATH]
2. ## Re: Rationalize the denominator
\frac{1}{((x)^(1/3)-(y)^(1/3))}
3. ## Re: Rationalize the denominator
$\frac1{x^{1/3}-y^{1/3}}$
$=\frac1{x^{1/3}-y^{1/3}}\cdot\frac{x^{2/3}+x^{1/3}y^{1/3}+y^{2/3}}{x^{2/3}+x^{1/3}y^{1/3}+y^{2/3}}$... | |
# How does Hanson's Market Maker (LMSR) work?
If the market maker wants to quote a "current price", he can. The current price for outcome 1 is:
$$\mbox{price1} = \frac{e^{\frac{q1}{b}}}{e^{\frac{q1}{b}} + e^{\frac{q2}{b}}}$$
Why this is the case? Is it just some simple "see-saw" algorithm? Exert pressure on one side... | |
This is convenient if your keyboard lacks some desired accents and other diacritics. The software is fast, accurate, and highly configurable. ), and shapes (these days, generally PostScript Type 1 or TrueType or OpenType). org) is a developing collection of resources for engaging students in writing and speaking about ... | |
# How do you solve the area of a trapezoid using diagonals
The height of a trapezoid is $10$ cm. The lengths of the two diagonals of the trapezoid are $30$ cm and $50$ cm. Calculate the area of the trapezoid.
On the homework I solved this using $${D_1D_2\over 2}$$ and my teacher marked me wrong. So I don't know what ... | |
# How to represent point-at-infinity in affine coordinate
In projective coordinates point-at-infinity can be identified with z=0. How to identify the point-at-infinity in affine coordinate.
Whether x=0 and y=0 can be considered as point-at-infinity in affine coordinate?
-
Does crypto.stackexchange.com/questions/6156... | |
# Oxide content description
From time to time, I come by to see what people do with my mhchem package. Here, I came across a notation that I did not know yet: $\ce{K2O-nSiO2-xH2O}$ and $\ce{K2O - 3.2SiO2 - 2.7H2O}$
What is this? Is this really a bond? Is this a short form for writing $\ce{K2O-Si_nO_{2n}-H_{2x}O_x}$ a... | |
# teaching machines
## CS 240: Lecture 38 – Graph Algorithms
November 29, 2021 by . Filed under cs3, fall-2021, lectures.
Dear students:
I don’t know about you, but my mind has been elsewhere. Our routine striving was cut into by a break. I’m glad it did. Sometimes I think that I’ll only have peace when I get all t... | |
# Question 2 Dragsters can achieve average accelerations of 26.0 m/s2 Suppose such a dragster accelerates from rest at this rate
###### Question:
Question 2 Dragsters can achieve average accelerations of 26.0 m/s2 Suppose such a dragster accelerates from rest at this rate for 5 5. How far in meters will the dragster ... | |
# Generate random number from $P(x)=Ax^{-3/2}\exp(-B/x)$?
I wish to numerically generate a random number from the distribution $$P(x) = Ax^{-3/2}\exp(-B/x),\qquad A,B,x>0$$
What would be the easiest way of achieving this?
Inverse transform sampling does not seem appropriate since the above $P(x)$ does not have an an... | |
## Abstract
Microdeletions of Yq are associated with azoospermia and severe oligozoospermia. In general, men with deletions are infertile and therefore deletions are not transmitted to sons unless in-vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are performed. We report an unusual family charac... | |
HP40GS vs HP50G
12-11-2015, 01:42 PM
Post: #1
Han Senior Member Posts: 1,881 Joined: Dec 2013
HP40GS vs HP50G
Are these machines similar enough to where flashing one with the other's OS would be feasible?
Graph 3D | QPI | SolveSys
12-11-2015, 03:46 PM
Post: #2
Marcus von Cube Senior Member Posts: 760 Joined: Dec 201... | |
### C - Candy
##### Languages: C, C++, Java, Tiger, ... (details)
Little Charlie is a nice boy addicted to candies. He is even a subscriber to All Candies Magazine and was selected to participate in the International Candy Picking Contest.
In this contest a random number of boxes containing candies are disposed in $... | |
# 8 Parameters
The variety of shapes of the nine pattern-book functions means that, often, one or another will be suitable for the modeling situation in hand.
Combining the functions to create a greater diversity of shapes is the subject of Chapter Section 9.
Even if the shape of the function used is appropriate, t... | |
Case weights are positive numeric values that may influence how much each data point has during the preprocessing. There are a variety of situations where case weights can be used.
## Details
tidymodels packages differentiate how different types of case weights should be used during the entire data analysis process, ... | |
# Two definitions of modules in monoidal category
The standard definition of a (left) simplicial module $V$ over some simplicial algebra $A$ is the map of simplicial vector spaces $A\otimes V\to V$ that gives the usual modules component-wise. Here $\otimes$ denotes the component-wise tensor product of simplicial vecto... | |
# Asymptotic work statistics of periodically driven Ising chains
Russomanno, Angelo ; Sharma, Shraddha ; Dutta, Amit ; Santoro, Giuseppe E (2015) Asymptotic work statistics of periodically driven Ising chains Journal of Statistical Mechanics: Theory and Experiment, 2015 (8). P08030. ISSN 1742-5468
Full text not avail... | |
What is Relational Algebra and Relational Calculus in DBMS. Вђў for example, the operation вђў since the result of any relational algebra operation is a the (theta-)join r on, 22/03/2011в в· relational algebra, and relational an overview of relational algebra operators and their sql join b on b.empno=a.empno. theta joi... | |
• Create Account
Posted 09 May 2012 - 01:09 PM
Using
typedef glm::dvec3 Vector3
was my first idea BUT I want things like the cross product to be used as member functions. GLM implements them as
normal functions taking the two vectors as parameters.
But when the inheritance I have suggested does not have any perform... | |
You can reinstall internet explorer if there is some problems, you will need windows xp installation CD to complete this process. the procedure as follows.
• Insert windows xp installation CD to CD Rom
• Now go to start and click run
• Type this command rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\win... | |
# Implicit second order method
(Difference between revisions)
# Implicit Second Order Method
The implicit second order method involves the derivatives of the next time level. Due to this reason they are iterative in nature. The second order time integration scheme is given by:
## Algorithm
for r:= 1 step 1 until M... | |
# Last name in bibliography, online latex
I found a bunch of threads with similar problems, but I didn't manage to solve mine, because slightly different. I would like to have the bibliography shown as:
Doniger, W.. Splitting the Difference. Chicago: University of Chicago Press, 1999.
W. Doniger, Splitting the Diffe... | |
# How do you simplify -12^-1?
Mar 16, 2018
-1/12
#### Explanation:
The negative exponent means that the number will go to the denominator.
$- {12}^{-} 1 = - \frac{1}{12}$
The negative still stays.
Mar 16, 2018
$- \frac{1}{12}$
#### Explanation:
$- {12}^{-} 1 = \frac{1}{-} 12 = - \frac{1}{12}$
any number (excep... | |
\marginpar inside figure environment fails
I am working with marginpar to put some comments in the margin of my document. In one case I would like to put a comment on a caption of a figure, a MWE of which looks like this:
\begin{document}
\begin{figure}
\caption{captiontext \marginpar{marginText}}
\end{figure}
\end{... | |
VS.
# Break vs. Split
Published:
Breakverb
To separate into two or more pieces, to fracture or crack, by a process that cannot easily be reversed for reassembly.
‘If the vase falls to the floor, it might break.’; ‘In order to tend to the accident victim, he will break the window of the car.’;
Divided.
‘Republica... | |
# Chebyshev’s Inequality
If we have a random variable $X$ and any number $a$, what is the probability that $X \geq a$? If we know the mean of $X$, Markov’s inequality can give an upper bound on the probability that $X$. As it turns out, this upper bound is rather loose, and it can be improved if we know the variance ... | |
# What Do We Care About?
## Reliability
Definition: Working correctly under faults and errors.
We need reliability in a system because users can be stupid and malicious and make mistakes. We want the system to be fault-tolerant in these conditions.
### Aside: Fault vs. Failure
A fault is defined as a component of ... | |
1. ## finding primes
How many primes are in the form 4n^8+1, where n is a positive integer?
*show working n explanation, PLS...
2. Hello
n=5p (where p is an integer) is a necessary condition but I do not know if it is a sufficient condition
If n=5p+1
Then n^8=(5p+1)^8=5P+1
Therefore 4n^8+1=20P+5 is divisible by 5 =... | |
# Math Help - Prove that f(x) is an odd function?
1. ## Prove that f(x) is an odd function?
Prove that $f(x) = \left\{ \begin{array}{cc}x^4\tan \frac{\pi x}{2}, &\mbox{if}\ |x|<1\\x|x|, &\mbox{if}\ |x|\geq 1\end{array}\right.$ is an odd function.
2. We want $f(x)=-f(-x) \: \forall x \in \mathbb{R}$.
If $|x|<1, f(-x... | |
# Math equation with cases and division signs
\begin{equation*}
\theta({P,\bar{Cl}}) =
\begin{cases}
S(P,\widehat{Cl}) + (S(P,\widehat{Cl}) \times ((\bar{R}-\widehat{R})/\bar{R})) & \widehat{Cl} \textless \bar{Cl} \\
S(P,\widehat{Cl}) - (S(P,\widehat{Cl}) \times ((\widehat{R}-\bar{R})/\bar{R})) & \widehat{Cl} \textg... | |
# 8th European PostgraduateFluid Dynamics Conference
## 6th – 9th July 2016Warsaw, Poland
Back to programme
# Turbulent combustion modelling with OpenFOAM: simulation of the non-premixed syngas flame
Michał T. Lewandowski1, Jacek Pozorski2
1Institute of Fluid-Flow Machinery, Gdańsk University of Technology
2Institu... | |
## Cryptology ePrint Archive: Report 2019/287
Security Evaluation for Snow 2.0-like Stream Ciphers Against Correlation Attacks over Extension Fields
A. N. Alekseychuk and S. M. Koniushok and M. V. Poremskyi
Abstract: We propose a general method for security evaluation of SNOW 2.0-like ciphers against correlation att... | |
# zbMATH — the first resource for mathematics
## Journal of Mathematics. Wuhan University
Short Title: J. Math., Wuhan Univ. Parallel Title: Shuxue Zazhi. Wuhan Daxue Publisher: Wuhan University, Wuchang ISSN: 0255-7797 Online: http://www.oriprobe.com/journals/sxzz.html Comments: Indexed cover-to-cover
Documents in... | |
**CS112 PA2: Basic Shading** ***Due date: Wednesday, Nov 6 by 11:59 pm*** Introduction ==================== The objective of this assignment is to get familiar with the basic geometric transformations that are fundamental to creating any scene. Specifically, you would need to write some code (maybe dozens of lines), an... | |
Under the auspices of the Computational Complexity Foundation (CCF)
REPORTS > KEYWORD > EXPONENTIAL TIME HYPOTHESIS:
Reports tagged with Exponential Time Hypothesis:
TR10-078 | 27th April 2010
Holger Dell, Thore Husfeldt, Martin Wahlén
Exponential Time Complexity of the Permanent and the Tutte Polynomial
Revisions: ... | |
# What should be the intuition when working with compactness?
I have a question that may be regarded by many as duplicate since there’s a similar one at MathOverflow. The point is that I think I’m not really getting the idea on compactness. I mean, in $$Rn\mathbb{R}^n$$ the compact sets are those that are closed and b... | |
# What will happen when measuring unmeasurable object?
There is a set called Vitali Set which is not Lebesgue measurable.
Analogously, there also exists a Vitali set $Y$ in $\mathbb R^3$ which is a subset of $[0,1]^3$ and $|Y\cap q|=1$ for all $q\in \mathbb R^3/\mathbb Q^3$. However, I'm curious about if it fulfilled... | |
# Energy in Center of Momentum Frame
Why is the total energy in the center of momentum frame of two particles the rest energies of the particles? I'm imagining the specific example of two identical particles with rest mass $m$, one at rest and one moving in the $+x$ direction. If we switch to the CoM frame, we should ... | |
## SolomonZelman one year ago infinite geometric series convergence. recap
1. anonymous
jeez solomon...you must be typing a book....a really long one..lol
2. Nnesha
,-,
3. SolomonZelman
$$\Large \color{blue}{ \displaystyle ^{\color{red}{~~~~~~~~~~~~~~~~~~~~~~~~~{\rm r}^4~~~~~+~~~~{\rm r}^3~~~~+~~~~{\rm r}^2~~~~+~... | |
An item to be galvanized is firstly cleaned chemically, typically in alkalis to degrease, then acid (hydrochloric or sulphuric) to remove surface oxides of iron. It can cause damage, such as chemical burns, upon contact, according to the U.S. National Library of Medicine.The U.S. Centers for Disease Control and Prevent... | |
# Kerodon
$\Newextarrow{\xRightarrow}{5,5}{0x21D2}$ $\newcommand\empty{}$
Example 7.1.5.9. Let $U: \operatorname{\mathcal{C}}\rightarrow \operatorname{\mathcal{D}}$ be an inner fibration of $\infty$-categories. Then:
• A morphism $e$ of $\operatorname{\mathcal{C}}$ is $U$-cartesian (in the sense of Definition 5.1.1.... | |
# to kill a mockingbird
When Jem tells Scout about getting his trousers back, he tells her of something strange. What is this? | |
## Journal of the Mathematical Society of Japan
### Maximal regularity of the time-periodic Stokes operator on unbounded and bounded domains
#### Abstract
We investigate the time-periodic Stokes equations with non-homogeneous divergence data in the whole space, the half space, bent half spaces and bounded domains. T... | |
# Tag Info
291
[0-9] isn't equivalent to \d. [0-9] matches only 0123456789 characters, while \d matches [0-9] and other digit characters, for example Eastern Arabic numerals ٠١٢٣٤٥٦٧٨٩
62
1.Install gedit plugins sudo apt-get install gedit-plugins 2.Go to Edit->Preference->Plugins-> and enable Code Comment 3.Ctl+m t... | |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 14 Dec 2019, 21:38
### GMAT Club Daily Prep
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QUESTION
# HCP 220 Capstone Discussion Question
This document of HCP 220 Capstone Discussion Question shows the solutions to the following problems:
Pharmacy technicians work under the direct supervision of pharmacists. The primary responsibility of pharmacy technicians is to prepare, package, measure, calculate, an... | |
# Replace for loop while with apply family function in R
I have trouble with for loop, my code runs very slowly. The thing I want to do is to use function from apply family to make my codes run faster (instead of using for loopand while). Here is an example and my loop:
require(data.table)
require(zoo)
K<-seq(1,1000... | |
# How to selectively delete a function together with its matching sets of brackets?
For example, suppose I want to retain only the content inside the argument of Distribute
Distribute[...Lengthly list of expressions ...]
+ Distribute[...Lengthly list of expressions ...] + ..
(hundreds of such terms)
I could do a fu... | |
## BrainsNThings Group Title Solve for x. Show your work one year ago one year ago
1. BrainsNThings
$\sqrt{6x+5}=\sqrt{53}$
2. ajprincess
Square both sides. then u will get 6x+5=53 (($$\sqrt a)^2=a$$) Nw can u solve for x @BrainsNThings
3. ajprincess
@mayliz it will be highly appreciated if u guide the asker towa... | |
# Description
## Introduction
The high Reynolds number flow around airfoils at large (beyond stall) angles of attack is a challenging CFD problem of significant importance for the aerospace industry. Nonetheless, up to the late 90s of the last century, the studies providing quantitative data on this type of flow were... | |
# Explore Waterwave, Bigwave, and more!
### Explore related topics
glamorous. fabulous. charming. fun. flirty. elegant. exciting. delicate. whimsical. wonderful. dramatic. cute. dreamy. alluring. magnificent. daring. enticing. enchanting. charming. sassy. sexy. sweet. artistic. creative. exquisite. stunning. daring..... | |
# Tag Info
30
What you seem to be looking for is deniable authentication. This is actually a somewhat stronger property than what you're asking for: it guarantees that the recipient (let's call him Bob) cannot cryptographically convince anyone else that the sender (let's call her Alice) signed the message, even if he... | |
# GRE® Number Properties Practice
Concept: Number of factors of an integer.
This GRE quant practice question is a number properties quantitative comparison question. Concept tested: Computing number of factors of integers; using that concept finding the smallest positive integer with 7 factors.
#### Question: N is t... | |
Journal article Open Access
# Implicit and Explicit Concept Relations in Deep Neural Networks for Multi-Label Video/Image Annotation
Markatopoulou, Foteini; Mezaris, Vasileios; Patras, Ioannis
### Citation Style Language JSON Export
{
"DOI": "10.1109/TCSVT.2018.2848458",
"author": [
{
"family": "Markatopoulou, Fote... | |
Ask your own question, for FREE!
Mathematics
OpenStudy (anonymous):
Why is ds/dt of s=t/9t+2 = 2/(9t+2)^2 and not the derivative 9x^2+2?
OpenStudy (anonymous):
Basically, I answered the question with 9x^2+2, but I was wrong and I'm trying to figure out why. :(
OpenStudy (shadowfiend):
Well, when you have an equati... | |
# Power Analysis with Existing Data Set
I am new to this forum but have found several threads to be highly useful so am posing a question myself.
My data was collected (fish length = factor, fish mercury = response) from several rivers over several years for the purpose of environmental (mercury) monitoring.
What I ... | |
# Use the known area of a circle to find the value of the integral
## Main Question or Discussion Point
Someone plz show me how to do the problem below, thanks very much.
1)***Use the known area of a circle to find the value of the integral
integral from -a to a of the function sqrt(a^2-x^2)dx.
2)***Then use the resu... | |
When we record data, we often obtain data that can be approximated nicely by a straight line. If this is the case, it tremendously simplifies our description of the dataset: we do not need to know every simgle datapoint any more, but only the two coefficients defining the best-fit line to the data points.
To obtain th... |
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